I am working on Ext3 and after looking at FS layout - ext3 reserves ~1024 blocks as Reserved Group Descriptor Table (reserved GDT blocks are between Group Descriptor blocks and Bitmap blocks). These ...

I have installed Linux 3.5 kernel and have compiled e2fsprogs as well. I have my own version of ext3 file system - lets say it is myfs. I have compiled myfs as well. Now I have few questions:
How to ...

In Windows, when a file/folder is created, it is associated with an FRN (a unique number which is like an Index into the MFT). All the file metadata is stored in the MFT which occupies a reserved size ...

Earlier I encountered this error.
lv_root: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY
Which may be caused by the constant power failure here in our office.
I fixed it by inserting a centos 6.4 disc ...

I saw some kernel errors from months ago in syslog that said an inode was marked dirty. I want to fsck the system but a reboot would be undesirable at this time.
What sort of checks can I do safely ...

On an ext3 (or ext2/4, pick your flavor) filesystem, how would one extract raw byte data that corresponds to a particular inode directly from the hard drive? Is it possible given, say, an inode number ...

I was creating a new file system in my external HDD. While formatting, I had to format this partition to the remaining available partition which is somewhere around 850GB. Now, I created an ext3 file ...

The ext2/3/4 filesystem checker has two options that seem to be very similar, -p and -y.
Both seem to perform an automatic repair, but the manpage states that -p can exit when it encounters certain ...

I just started up my linux box to find that one of my filesystem's had errors: I had to login as root to run fsck and hit y repeatedly. There were a lot of errors. So many that I used silly putty and ...

I need to detect a filesystem type from a C/C++ program using the filesystem superblock. However, I don't see much differences between superblocks for ext2 and ext4. The s_rev_level field is the same ...

I have a failing Sparc based Netgear ReadyNAS that uses LVM on Raid with EXT3 partitions with a 16KB block size. I would like to pull the drives out of the NAS and mount them read only in a Linux box. ...

Some preamble: I'm taking bitwise copy of disk devices (via dd command) from twin hosts (i.e. with the same virtualized hardware layout and software packages, but with different history of usage). To ...

Let's say I want to set one or more attributes (in the chattr sense) on every file created in a given directory.
Is there a way to achieve this automatically, like umask does for file permissions ?
...

I recently moved from a hardware RAID1 enclosure to using two eSATA drives with md. Everything seems to be working fine, except for the fact that directory traversals/listings sometimes crawl (on the ...

It is generally a bad idea to e2fsck a file system while the file system is mounted (the man page mentions one specific situation where it is safe: -n given, and -c, -l or -L not given, and even then ...

I have an old /home partition, that dates back to former linux systems, and it is still in ext3 format. Whereas the rest of my system, / and some other mounted point are devices formated in ext4.
I ...